Why is this spider still alive its trapped it should be dead its ben trap for 4 days now and i have lifted the container one time to see if it was dead and that was only a small lift. why is it still alive

What would the difference of spectral lines emitted by hydrogen gas in distant galaxies which is normally found at a wavelength of 21 cm on earth, be observed at 21.1 centimeters?

What is the magnitude of the resultant vector round your answer to the nearest tenth

Assume similar data for the motion of the blood in your aorta. estimate how many beats of the heart it will take the blood to get from your heart to your brain. (assume that the distance from your heart to your brain is 30 cm)